Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon, showing our new design; and,

FIG. 2 is a front view of a display screen or portion thereof with icon showing an alternative embodiment of our new design.

The dot-dash broken lines illustrating portions of the display screen or portion thereof with icon are for illustrative purpose only and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 